nslookup

[Jennifer Money]

Hi all....I recently tried nslookup on all my machine names/IPs. If I type in the machine name, it comes back with the IP. If I type in the IP, it comes back with 'no hostname infotmation available on ### IP'. Is it the lookup order of my table? I can't even do my brrestores until I get this resolved. No pun intended.

Jennifer

[Rick Garland]

Check the /etc/nsswitch.conf file. See what order the lookups is happening and adjust if necessary.

[James R. Ferguson]

Jennifer:

Along the lines Rick suggested; run nslookup and type "policy". This will give you the policy from the switch configuration file.

...JRF...

[Jennifer Money]

I looked up my nsswitch.conf file and it does not appear to need adjusting. Anything else?

Jennifer

[Mike McKinlay]

Jennifer, does your DNS server provide reverse-DNS lookups?

[Jennifer Money]

I can perform reverse lookups on all servers except for one.

Jennifer

[Rick Garland]

If you can do reverse lookups on all servers but one, check the DNS entry for that server. Do you have the ending period (.) for the entry?

[Jennifer Money]

Our lookup goes off of our named.data file. THere are no ending .'s.

Jennifer

[Rick Garland]

For the reverse lookups you would need PTR records. These end in the (.)

[Jennifer Money]

Here's the deal...the node name was missing in the reverse DNS file....

THanks for everyone's input.